1Ur-Fe Engine Control. Sfi System Starter Signal Circuit

While the engine is being cranked, current flows from terminal STAR of the certification ECU (smart key ECU assembly) to the park/neutral position switch assembly and to terminal STA of the ECM (STA signal).

WIRING DIAGRAM

Refer to DTC P0617 (Click here).

INSPECTION PROCEDURE

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

1.CHECK WHETHER ENGINE CAN BE CRANKED

Check if the engine can be cranked.

Result
Result
Proceed to
Engine cannot be cranked
A
Engine can be cranked
B

Result
Result	Proceed to
Engine cannot be cranked	A
Engine can be cranked	B

Go to step 12

A

2.READ VALUE USING GTS (STARTER SIGNAL)

Connect the GTS to the DLC3.

Turn the engine switch on (IG).

Turn the GTS on.

Enter the following menus: Powertrain / Engine and ECT / Data List / Starter Signal.

Check the value displayed on the GTS when the engine switch is turned to the START.
OK:
Engine Switch Position
Display (Starter Signal)
Engine switch on (IG)
Close or OFF
Engine started
Open or ON

Go to step 10

OK

3.INSPECT STARTER RELAY (ST)

Inspect the starter relay (ST) (Click here).

REPLACE STARTER RELAY (ST)

OK

4.INSPECT STARTER

Inspect the starter (Click here).

REPAIR OR REPLACE STARTER (Click here)

OK

5.CHECK HARNESS AND CONNECTOR (ST RELAY - STARTER)

Remove the starter relay (ST) from the engine room relay block.

Disconnect the starter connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection
Condition
Specified Condition
ST relay (3) - D2-1
Always
Below 1 Ω
ST relay (3) or D2-1 - Body ground
Always
10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

6.CHECK HARNESS AND CONNECTOR (BATTERY - STARTER)

Disconnect the starter assembly connector.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection
Condition
Specified Condition
D21-1 - Body ground
Always
11 to 14 V

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

7.CHECK HARNESS AND CONNECTOR (ST RELAY - BODY GROUND)

Remove the starter relay (ST) from the engine room relay block.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection
Condition
Specified Condition
ST relay (1) - Body ground
Always
Below 1 Ω

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

8.CHECK HARNESS AND CONNECTOR (ST RELAY - PNP SWITCH, SMART KEY ECU ASSEMBLY)

Remove the starter relay (ST) from the engine room relay block.

Disconnect the PNP switch connector.

Disconnect the smart key ECU assembly connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
ST relay (2) - E128-12 (STA)	Always	Below 1 Ω
ST relay (2) - C24-5	Always	Below 1 Ω
ST relay (2) or E128-12 (STA) - Body ground	Always	10 kΩ or higher
ST relay (2) - C24-5 - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

9.CHECK STARTER RELAY (POWER SOURCE)

Land Cruiser. Urj200, 202 Grj200 Vdj200.1Ur-Fe Engine Control.Sfi System.Sfi System Starter Signal Circuit

Remove the starter relay (ST) from the engine room relay block.

Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
Condition
Specified Condition
ST relay (5) - Body ground
Always
11 to 14 V

REPAIR OR REPLACE HARNESS OR CONNECTOR

GO TO ENTRY AND START SYSTEM (Click here)

10.INSPECT PARK/NEUTRAL POSITION SWITCH

Inspect the Park/Neutral Position (PNP) switch (Click here).

REPLACE PARK/NEUTRAL POSITION SWITCH (Click here)

OK

11.CHECK HARNESS AND CONNECTOR (PNP SWITCH - ECM, SMART KEY ECU ASSEMBLY)

Disconnect the smart key ECU assembly connector.

Disconnect the PNP switch connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (for RHD):

Tester Connection	Condition	Specified Condition
C24-4 - E128-10 (STAR)	Always	Below 1 Ω
C46-120 (NSW) - E128-10 (STAR)	Always	Below 1 Ω
C24-4 or E128-10 (STAR) - Body ground	Always	10 kΩ or higher
C46-120 (NSW) or E128-10 (STAR) - Body ground	Always	10 kΩ or higher

Standard Resistance (for LHD):

Tester Connection	Condition	Specified Condition
C24-4 - E128-10 (STAR)	Always	Below 1 Ω
C45-120 (NSW) - E128-10 (STAR)	Always	Below 1 Ω
C24-4 or E128-10 (STAR) - Body ground	Always	10 kΩ or higher
C45-120 (NSW) or E128-10 (STAR) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

GO TO SMART KEY SYSTEM

12.READ VALUE USING GTS (STARTER SIGNAL)

Connect the GTS to the DLC3.

Turn the engine switch on (IG).

Turn the GTS on.

Enter the following menus: Powertrain / Engine and ECT / Data List / Starter Signal.

Check the value displayed on the GTS when the engine switch is turned to the START.
OK:
Engine Switch Position
Display (Starter Signal)
Engine switch on (IG)
Close or OFF
Engine started
Open or ON

REPAIR OR REPLACE HARNESS OR CONNECTOR

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

Engine Switch Position	Display (Starter Signal)
Engine switch on (IG)	Close or OFF
Engine started	Open or ON